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Friday, April28, 2017 L-36.com

Washers



Lock Washers -- Internal Tooth

Internal Tooth Lock Washer
Nominal
Washer Size
A B C
Inside Diameter Outside Diameter Thickness
Min. Max. Max. Min. Max. Min.
2 0.086
4 0.112
6 0.138
8 0.164
10 0.190
12 0.216
1/4 0.250
5/16 0.312
3/8 0.375
7/16 0.438
1/2 0.500
5/8 0.625
1/8 Pipe
0.089
0.115
0.141
0.168
0.195
0.221
0.256
0.320
0.384
0.448
0.512
0.640
0.425
0.095
0.123
0.150
0.176
0.204
0.231
0.267
0.332
0.398
0.464
0.530
0.663
0.410
0.200
0.270
0.295
0.340
0.381
0.410
0.478
0.610
0.692
0.789
0.900
1.071
0.615
0.175
0.255
0.275
0.325
0.365
0.394
0.460
0.594
0.670
0.740
0.867
1.045
0.595
0.015
0.019
0.021
0.023
0.025
0.025
0.028
0.034
0.040
0.040
0.045
0.050
0.022
0.010
0.015
0.017
0.018
0.020
0.020
0.023
0.028
0.032
0.032
0.037
0.042
0.017

External Tooth

External Tooth Lock Washer
Nominal
Washer Size
A B C
Inside Diameter Outside Diameter Thickness
Min. Max. Max. Min. Max. Min.
4 0.112
6 0.138
8 0.164
10 0.190
12 0.216
1/4 0.250
5/16 0.312
3/8 0.375
7/16 0.438
1/2 0.500
5/8 0.625
0.115
0.141
0.168
0.195
0.221
0.256
0.320
0.384
0.448
0.513
0.641
0.123
0.150
0.176
0.204
0.231
0.267
0.332
0.398
0.464
0.530
0.663
0.260
0.320
0.381
0.410
0.475
0.510
0.610
0.694
0.760
0.900
1.071
0.245
0.305
0.365
0.395
0.460
0.494
0.588
0.670
0.740
0.880
1.045
0.019
0.022
0.023
0.025
0.028
0.028
0.034
0.040
0.040
0.045
0.050
0.015
0.016
0.018
0.020
0.023
0.023
0.028
0.032
0.032
0.037
0.042

Internal - External Tooth

Internal-External Tooth Lock Washer
Nominal Washer Size A
Inside Diameter
B
Outside Diameter
C
Thickness
Min. Max. Max. Min. Max. Min.
6 0.138
8 0.164
10 0.190
1/4 0.250
0.141
0.168
0.195
0.256
0.150
0.176
0.204
0.267
0.510
0.510
0.610
0.760
0.495
0.495
0.580
0.725
0.028
0.028
0.034
0.040
0.023
0.023
0.028
0.032

Flat Washers -- Machine Screw

NO ID OD TH WT/M
2
4
5
6
8
10
12
14
.092
.125
.140
.150
.170
.203
.227
.265
.219
.280
.280
.375
.375
.438
.500
.562
.018
.026
.026
.032
.032
.032
.048
.048
.16
.36
.33
.83
.79
1.10
2.22
2.70
Machine Screw Flat Washer

 


Fender Washers

Bolt Size ID OD TH Approx
No. in
20#
10

1/4

1/4

1/4

5/16

5/16

3/8

3/8

1/2
7/32

9/32

9/32

9/32

11/32

11/32

13/32

13/32

17/32
1

1

1-1/4

1-1/2

1-1/4

1-1/2

1-1/4

1-1/2

2
.051
.080
.051
.080
.051
.080
.051
.080
.051
.080
.051
.080
.051
.080
.051
.080
.051
.080
1.4M

1.5M

.92M

.62M

.96M

.64M

.94M

.66M

.38M


USS Washers

USS Washer
Bolt
Size, In.
Outside Dia.,
In.
Inside Dia.,
In.
American
Standard Gauge
Approx.
Lbs. Per
M Pcs.
Approx.
No./Pcs.
Per Lb.
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
1-5/8
1-3/4
1-7/8
2
2-1/4
2-1/2
2-3/4
3
9/16
3/4
7/8
1
1-1/4
1-3/8
1-1/2
1-3/4
2
2-1/4
2-1/2
2-3/4
3
3-1/4
3-1/2
3-3/4
4
4-1/4
4-1/2
4-3/4
5
5-1/4
5-1/2
1/4
5/16
3/8
7/16
1/2
9/16
5/8
11/16
13/16
15/16
1-1/16
1-1/4
1-3/8
1-1/2
1-5/8
1-3/4
1-7/8
2
2-1/8
2-3/8
2-5/8
2-7/8
3-1/8
18(3/64)
16(1/16)
14(5/64)
14(5/64)
14(5/64)
12(7/64)
12(7/64)
10(9/64)
9(5/32)
8(11/64)
8(11/64)
8(11/64)
8(11/64)
7(3/16)
7(3/16)
7 (3/16)
7(3/16)
7(3/16)
7(3/16)
5(7/32)
4(15/64)
3(1/4)
2(5/32)
2.8
6.7
11.5
14.9
24.4
38.5
45.5
77
110
153
188
220
260
333
385
448
500
569
630
826
961
1100
1300
361
149
87
67
41
26
22
13
9.1
6.5
5.3
4.5
3.8
3
2.6
2.3
2
1.8
1.6
1.2
1
.9
.8

 

SAE Washers

Bolt Size, In. Outside Dia., In. Inside Dia., In. American
Standard Gauge
Approx.
Lbs. Per
M Pcs.
Approx.
No/Pcs.
Per Lb.
4
6
8
3/16
12
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
5/16
3/8
7/16
1/2
9/16
5/8
11/16
13/16
59/64
1-1/16
1-3/16
1-5/16
1-1/2
1-3/4
2
2-1/4
2-1/2
2-3/4
3
1/8
5/32
3/16
7/32
1/4
9/32
11/32
13/32
15/32
17/32
19/32
21/32
13/16
15/16
1-1/16
1-3/16
1-5/16
1-7/16
1-9/16
21(1/32)
18(3/64)
18(3/64)
18(3/64)
16(1/16)
16(1/16)
16(1/16)
16(1/16)
16(1/16)
13(3/32)
13(3/32)
13(3/32)
10(9/64)
10(9/64)
10(9/64)
10(9/64)
9(5/32)
9(5/32)
9(5/32)
.58
1.26
1.7
2.3
3.4
4.5
5.2
7.2
9.5
18.3
23.4
27.7
47.4
63
83
109
160
190
240
1650
790
585
435
280
222
192
140
105
55
43
36
21
16
12
9.2
6.25
5.25
4.25

 


Countersunk Finishing Washers

Countersunk Finishing Washer
Screw Size OD ID
Mm. Max.
6
8
10
12
1/4
.469
.531
.593
.656
.781
.170
.180
.235
.259
.305
.200
.210
.265
.289
.335

 


Countersunk
External Tooth Lock Washers

Lock Washer
Nominal
Washer Size
A B C D
Inside Diameter Outside
Diameter
Thickness Length
Min. Max. Ref. Max. Min. Max. Min.
6 0.138
8 0.164
10 0.190
1/4 0.250
0.140
0.167
0.195
0.255
0.150
0.177
0.205
0.267
0.301
0.340
0.369
0.468
0.021
0.021
0.025
0.025
0.017
0.017
0.020
0.020
0.092
0.105
0.099
0.128
0.082
0.088
0.083
0.113

 


Split Lock Washers -- Hi-Collar Helical Spring Lock Washers

Nominal
Washer Size
A B W T+t
2
Inside Diameter Outside Diameter Washer Section
Width Thickness
Mm. Max. Max. Mm. Mm.
4 0.112
6 0.138
8 0.164
10 0.190
0.115
0.141
0.168
0.194
0.121
0.148
0.175
0.202
0.173
0.216
0.267
0.294
0.022
0.030
0.042
0.042
0.022
0.030
0.047
0.047
1/4 0.250
5/16 0.312
3/8 0.375
0.255
0.318
0.382
0.263
0.238
0.393
0.365
0.460
0.533
0.047
0.062
0.076
0.078
0.093
0.125
Split Lock Washer

 


Split Lock Washers -- Medium and Heavy Split Helical Spring Lock

Split Lock Washer
Nominal
Washer Size
A B T W
Inside
Diameter
Outside
Diameter
Mean Sect. Thickness
(
T + t)
2
Section Width
Max. Min. Med. Max. Heavy Max. Med. Min. Heavy Min. Med. Min. Heavy Min.
2 0.086
3 0.099
4 0.112
5 0.125
0.094
0.107
0.120
0.133
0.088
0.101
0.114
0.127
0.172
0.195
0.209
0.236
0.182
0.209
0.223
0.252
0.020
0.025
0.025
0.031
0.025
0.031
0.031
0.040
0.035
0.040
0.040
0.047
0.040
0.047
0.047
0.055
6 0.138
8 0.164
10 0.190
12 0.216
0.148
0.174
0.200
0.227
0.141
0.167
0.193
0.220
0.250
0.293
0.334
0.377
0.266
0.307
0.350
0.391
0.031
0.040
0.047
0.056
0.040
0.047
0.056
0.063
0.047
0.055
0.062
0.070
0.055
0.062
0.070
0.077
1/4 0.250
5/16 0.312
3/8 0.375
7/16 0.438
0.262
0.326
0.390
0.455
0.254
0.317
0.380
0.443
0.489
0.586
0.683
0.779
0.491
0.596
0.691
0.787
0.062
0.078
0.094
0.109
0.077
0.097
0.115
0.133
0.109
0.125
0.141
0.156
0.110
0.130
0.145
0.160
1/2 0.500
9/16 0.562
5/8 0.625
11/16 0.688
0.518
0.582
0.650
0.713
0.506
0.570
0.635
0.698
0.873
0.971
1.079
1.176
0.883
0.981
1.093
1.192
0.125
0.141
0.156
0.172
0.151
0.170
0.189
0.207
0.171
0.188
0.203
0.219
0.176
0.193
0.210
0.227
3/4 0.750
13/16 0.812
7/8 0.875
15/16 0.938
0.775
0.843
0.905
0.970
0.760
0.824
0.887
0.950
1.271
1.367
1.464
1.560
1.291
1.391
1.494
1.594
0.188
0.203
0.219
0.234
0.226
0.246
0.266
0.284
0.234
0.250
0.266
0.281
0.244
0.262
0.281
0.298
1 1.000
1-1/16 1.062
1-1/8 1.125
1-3/16 1.188
1.042
1.107
1.172
1.237
1.017
1.080
1.144
1.208
1.661
1.756
1.853
1.950
1.705
1.808
1.909
2.008
0.250
0.266
0.281
0.297
0.306
0.326
0.345
0.364
0.297
0.312
0.328
0.344
0.319
0.338
0.356
0.373
1-1/4 1.250
1-5/16 1.312
1-3/8 1.375
1-7/16 1.438
1-1/2 1.500
1.302
1.366
1.432
1.497
1.561
1.271
1.334
1.398
1.462
1.525
2.045
2.141
2.239
2.334
2.430
2.113
2.211
2.311
2.406
2.502
0.312
0.328
0.344
0.359
0.375
0.384
0.403
0.422
0.440
0.458
0.359
0.375
0.391
0.406
0.422
0.393
0.410
0.427
0.442
0.458

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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.